一个百度定位例子，把自己的经纬度转换为具体位置

程序： BaiduMap主包：

1 package com.xmb.BaiduMap;
  2 
  3 import com.baidu.mapapi.BMapManager;
  4 import com.baidu.mapapi.GeoPoint;
  5 import com.baidu.mapapi.LocationListener;
  6 import com.baidu.mapapi.MKAddrInfo;
  7 import com.baidu.mapapi.*;
  8 import com.baidu.mapapi.MKDrivingRouteResult;
  9 import com.baidu.mapapi.MKGeneralListener;
 10 import com.baidu.mapapi.MKPoiResult;
 11 import com.baidu.mapapi.MKSearch;
 12 import com.baidu.mapapi.MKSearchListener;
 13 
 14 import com.baidu.mapapi.MKTransitRouteResult;
 15 import com.baidu.mapapi.MKWalkingRouteResult;
 16 import com.baidu.mapapi.MapActivity;
 17 import com.baidu.mapapi.MapController;
 18 import com.baidu.mapapi.MapView;
 19 
 20 
 21 
 22 
 23 
 24 
 25 import android.app.Activity;
 26 import android.graphics.drawable.Drawable;
 27 import android.location.Location;
 28 import android.os.Bundle;
 29 import android.widget.TextView;
 30 import android.widget.Toast;
 31 
 32 public class BaiduMap extends Activity {      
 33      public TextView tv1, tv2;
 34     public BMapManager mapManager;
 35     @Override  
 36     public void onCreate(Bundle savedInstanceState) {  
 37         super.onCreate(savedInstanceState);  
 38         setContentView(R.layout.mylocation);  
 39         tv1=(TextView)findViewById(R.id.result1);
 40         tv2 = (TextView) this.findViewById(R.id.result2);
 41         
 42         mapManager=new BMapManager(this);
 43         
 44         mapManager.init("53351EE4BDE7BD870F41A0B4AF1480F1CA97DAF9", new MyMKGeneralListener());
 45         
 46         
 47         mapManager.getLocationManager().setNoitifyInternal(20, 5);
 48 
 49 
 50         mapManager.getLocationManager().requestLocationUpdates(new MyLocationListener());
 51         
 52         mapManager.start();
 53         
 54         
 55 //      mapManager = new BMapManager(this);
 56 //        mapManager.init("EDB67AD764D300895C95ABA02A4DDC58D5485CCD",
 57 //                new MyMKGeneralListener());
 58 //        // 设置通知间隔:iMaxSecond - 最大通知间隔,单位:秒;iMinSecond - 最小通知间隔,单位:秒
 59 //        mapManager.getLocationManager().setNotifyInternal(20, 5);
 60 //
 61 //        mapManager.getLocationManager().requestLocationUpdates(
 62 //                new MyLocationListener());
 63 //        mapManager.start();
 64         
 65     }  
 66     // 定位自己的位置，只定位一次  
 67     class MyLocationListener implements LocationListener {
 68 
 69         @Override
 70         public void onLocationChanged(Location arg0) {
 71             
 72             double jindu1 = arg0.getLatitude();
 73             double weidu1 = arg0.getLongitude();
 74             
 75             int jindu = (int) (arg0.getLatitude()*1000000);
 76             int weidu = (int) (arg0.getLongitude()*1000000);
 77             tv1.setText("经度：" + jindu1 + ",纬度：" + weidu1);
 78             System.out.println("经度：" + jindu1 + ",纬度：" + weidu1);
 79             MKSearch search = new MKSearch();
 80             search.init(mapManager, new MyMKSearchListener());
 81             search.reverseGeocode(new GeoPoint(jindu, weidu));
 82         }
 83 
 84     }
 85 
 86     class MyMKSearchListener implements MKSearchListener {
 87 
 88         @Override
 89         public void onGetAddrResult(MKAddrInfo arg0, int arg1) {
 90             if (arg0 == null) {
 91                 tv2.setText("没有获取想要的位置");
 92             } else {
 93                 GeoPoint point = arg0.geoPt;
 94                 tv2.setText("地址：" + arg0.strAddr + ",坐标："
 95                         + point.getLatitudeE6() + "," + point.getLongitudeE6());
 96             }
 97         }
 98 
 99         @Override
100         public void onGetDrivingRouteResult(MKDrivingRouteResult arg0, int arg1) {
101             // TODO Auto-generated method stub
102             
103         }
104 
105         @Override
106         public void onGetPoiResult(MKPoiResult arg0, int arg1, int arg2) {
107             // TODO Auto-generated method stub
108             
109         }
110 
111         @Override
112         public void onGetTransitRouteResult(MKTransitRouteResult arg0, int arg1) {
113             // TODO Auto-generated method stub
114             
115         }
116 
117         @Override
118         public void onGetWalkingRouteResult(MKWalkingRouteResult arg0, int arg1) {
119             // TODO Auto-generated method stub
120             
121         }
122 
123         
124 
125     }
126 
127     // 常用事件监听，用来处理通常的网络错误，授权验证错误等
128     class MyMKGeneralListener implements MKGeneralListener {
129 
130         @Override
131         public void onGetNetworkState(int arg0) {
132 
133         }
134 
135         @Override
136         public void onGetPermissionState(int arg0) {
137 
138         }
139 
140     }
141     }

BMapApiDemoApp包：

1 package com.xmb.BaiduMap;
 2 
 3 import android.app.Application;
 4 import android.widget.Toast;
 5 
 6 import com.baidu.mapapi.*;
 7 
 8 public class BMapApiDemoApp extends Application {
 9     
10     static BMapApiDemoApp mDemoApp;
11     
12     //百度MapAPI的管理类
13     BMapManager mBMapMan = null;    
14     // 授权Key
15     // TODO: 请输入您的Key,
16     // 申请地址：http://dev.baidu.com/wiki/static/imap/key/
17     String mStrKey = "53351EE4BDE7BD870F41A0B4AF1480F1CA97DAF9";
18     boolean m_bKeyRight = true;    // 授权Key正确，验证通过
19     
20     // 常用事件监听，用来处理通常的网络错误，授权验证错误等
21     static class MyGeneralListener implements MKGeneralListener {
22         @Override
23         public void onGetNetworkState(int iError) {
24             Toast.makeText(BMapApiDemoApp.mDemoApp.getApplicationContext(), "您的网络出错啦！",
25                     Toast.LENGTH_LONG).show();
26         }
27 
28         @Override
29         public void onGetPermissionState(int iError) {
30             if (iError ==  MKEvent.ERROR_PERMISSION_DENIED) {
31                 // 授权Key错误：
32                 Toast.makeText(BMapApiDemoApp.mDemoApp.getApplicationContext(), 
33                         "请在BMapApiDemoApp.java文件输入正确的授权Key！",
34                         Toast.LENGTH_LONG).show();
35                 BMapApiDemoApp.mDemoApp.m_bKeyRight = false;
36             }
37         }        
38     }    
39     @Override
40     public void onCreate() {
41         mDemoApp = this;
42         mBMapMan = new BMapManager(this);
43         mBMapMan.init(this.mStrKey, new MyGeneralListener());
44         super.onCreate();
45     }
46     @Override
47     //建议在您app的退出之前调用mapadpi的destroy()函数，避免重复初始化带来的时间消耗
48     public void onTerminate() {
49         // TODO Auto-generated method stub
50         if (mBMapMan != null) {
51             mBMapMan.destroy();
52             mBMapMan = null;
53         }
54         super.onTerminate();
55     }
56 
57 }

xml文件就只是一个TextView控件，清单注意加权限的哦